Well, to be honest I think I'm a better short story writer than a novelist. Novels I find very hard, hours and hours, weeks and weeks, of conscious thought - whereas short stories slip out painlessly in a few days.
'Made it as a writer'? I'm still wondering if I've made it as a writer. I've made it as a published writer of the type of SF that I want to write and read, but I'm still waiting for that big breakthrough.
Which, of course, isn't the point of writing - but it would be nice if, along with the creative satisfaction of writing and seeing my work in print, I could do more than merely scrape a living. Okay, moaning over.
The market for short stories is hard to break into, but a magazine editor isn't always looking for big names with which to sell his magazine - they're more willing to try stories by newcomers, if those tales are good.
The inspiration to write? Perhaps it's not so much inspiration, as a NEED to write. I get itchy and guilty and dissatisfied when I haven't written for a while. Ideas come to me and need to be written down.
I write about five thousand words a day, when working on a book, about three thousand a day if I'm writing a short story. I take long periods off between projects, when I read a lot, garden, and think about the next book or stories.
Why my interest in writers? Well, I'm one, and many of my friends are writers. I know what it's like to write. I'm interested in the creative process. I'm fascinated by the disparity between who we are on the outside, and what we have bubbling away inside us.